Admins column empty when board has more than one admin

Issue Summary

The Boards section has a column called Admin, which shows the board admin user.

Currently that value is lost when you add more than one admin.

Steps to Reproduce

• Add another board admin to a board that has an admin set:
  
• Check the board in the Boards list at https://<YOUR_SITE>.atlassian.net/jira/boards?contains=

Expected Results

The Admins column will show all admins.

Actual Results

The column is empty:

Workaround

Navigate to the board's settings to see its admins: